I don't, in general, have difficulties with different *accents* here: it's just that some people just can't or won't enunciate it they're ...failing to enunciate enough. (Around here if you can't understand someone the first time, they usually just repeat things the exact same way, not very helpful. You wanna be like, 'Try slowing it down, take a stab at the Queen's English, do an impression, even.
"
My Bostonian can get pretty heavy, but if it's ever giving someone a hard time, I can modulate it or try for TV announcer English, etc.
(I did try filing off the Southie, etc, as a teen, but it seems to have sprung back.) I think as long as she can do some of that your daughter will have an OK time with whatever.
See, around here the college kids'd be like, 'Do the accent!' every time a Boondock Saints movie came out.
Here's me being exotic.